Hydraulic press



G. H. WHEATLEY.

HYDRAULIC PRESS.

APPLICATION FILED FEB. II, 1920.

1,370,675, Patented Mar. 8, 1921.

3 SHEETS-SHEET 1.

G. H. WHEATLEY.

HYDRAULIC PRESS.

APPLICATION FILED FEB- H. 1920.

Patenfd Mar.

8, 1921. 3 SHEETS-SHEET 2.

, v .t=5ii!iiiiii-iiiittiiliii:ii li i:V7 v i G. H. WHEATLEY! HYDRAULIC PRESS.

APPLICATION FILED FEB. 11. 1920.

Patented Mar. 8, 1921.

3 SHEETS-SHEET 3.

' ll W- VENTOA H. Ada? UNITED STATES I GEORGE E. WHEATLEY, OF CHICAGO, ILLINOIS.

HYDRAULIC PRESS.

Specification of Letters Patent.

Application filed February 11, 1920. Serial No. 357,989.

T 0 all whom it may concern Be it known that I, Gnoncn H. WHnArLnr, a citizen of the United States, and a resident of Chicago, county of Cook, State of- Illinois, have invented an Improvement in Hydraulic Presses, of which the following is a specification.

This lnventlon relates to hydraulic presses,

and with regard to certain more specific features, to a press for inserting wedgesin a mold.

Among the several objects of the invenularly members of an expansible core used 5 in the manufacture of resilient tires; the

provision of a convenient and compact device of the above type that is easily operated and readily assembled and disassembled as for inspection and repair. Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the features of construction, combination of elements and arrangements of parts which will be exemplified in the accompanying drawings and the scope'of the applicatioirof which will be indicated in the followlng claims.

In the accompanying drawings, in which is illustrated one of various possible embodiments of the invention,

Figure 1 is a plan of the press;

Fig. 2 is an elevation,

Fig. 3 is a transverse sectional elevation on the line 33 of Fig. 2;

Fig. 4 is a plan of the table;

Fig. 5 is a transverse section on the line 55 of Fig. 4.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring now more particularly to Figs. 1, 2 and 3 of the accompanying drawings, there is illustrated at 1 a table, preferably of metal, mounted on the casing 3 of a hydraulic ram by means of bolts or rods 5 provided with spacing sleeves 7 adapted to maintain the table and casing in proper relative position.

The table, shown more in detail in Figs. 4 and 5, has four intersecting radial slots 9 keyed as at 11 (Fig. 5) to receive the ra dially slidable blocks 13 shown in Figs. 1, 2 and 3. These blocks travel through the slots 9, and as the slots intersect, a block may be moved from one slot to the opposite one, if desired. i

The blocks 9 serve to transmit motion from the vertically moving ram cylinder 15 (Fig. 3) and the wedge-cross or device 17 carried thereby to the desired part of wedges or spacing blocks 19 of a mold such as is described in my co-pending application for resilient tire and method of apparatus for making the same. 'The blocks are, of course, adaptedfor other uses, but are particularly useful in connection with wedges of the type described in said application.- In'Fig. 5 there is illustrated a portion of a mold 21in which are wedges 19, and one such wedge is shown as ready to be pushed radially outwardly by the movement of one of the blocks 13.

The blocks, as above noted, are moved radially outwardly by the ram cylinder 15. When hydraulic pressure is applied through the conduit 21 to raise the wedge cylinder from its lowermost position indicated in Figs. 2 and 3 the wedge-cross or ram wedge device 17 carried thereby is forced upwardly, the four wedges thereof connecting respectively with the four blocks 13 and forcingthe latter outwardly in their respective slots 9.

When pressure at the conduit 21 is released and the fluid admitted therethrough is permitted to escape, the ram and its wedge cross drop, and it is then possible to move the blocks inwardly by hand or otherwise.

In using this hydraulic press with a core of the type shown in said application, the core is laid on the table as indicated in Fig. 5, the raised central portion 23 of the table registering with a shoulder 25 in the lower surface of the mold 27. Two or more of the wedges 19 are then'put in position upon the interchangeable pins 29 carried by blocks 13. Pressure is applied to lift the ram, the wedge cross thereof moving the blocks outwardly to force the wedges into the core, such movement being limited manually or else automatically by suitable stops (not shown). Pressure is then relieved at the ram, its cylinder drops, the blocks are moved inwardly and the mold is rotated, if necessary, in order to have the blocks in register with the mold wedges or spacing Patented Mar. 8, 1921.

bloclis, as the case may be, they are forced into position, whereupon pressure is applied to the ram and the wedging operation is repeated. 7 When the wedge cross drops the blocks move inwardly, and one or more further wedging operations are effected, if necessary, to get all the wedges and spacers of the mold into position. 7 When the blocks are finally moved inwardly afterthe last wedging operation, and any other desired operation of the mold completed, the mold is removed from the table, and the press is .ready to handle another mold.

For handling cores of different height,-

that is, for different diameters of tires, the pins 29 are made interchangeable, the projecting portions of the pins being in registry V with the horizontal median p block slot 31, or above or below this plane ane of the as desired, depending on the height of the wedges and spacers 19 for diameter oftire.,

In view of the above, it is believed that the various featuresof this invention will be clear without further elaboration, and it will be seen that with'the article and apparatus and process herein disclosed, the

a several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in carrying out the above process and in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and notin a limiting sense.

I claim 1. Apparatus of the class described, combining a hydraulic ram, a plurality of wedges, a table having slots registering the respective with said wedges blocks slidable in the slots and adapted to register with the wedges to be moved'thereby. a 2. Apparatus of the class described, combining a hydraulic ram, a plurality of wedges, a table having slots registering with said wedges, the table being adapted'to receive. a corehaving-wedges, and the blocks registering with the wedges to force the latter into position by the action of the ram. 3. Apparatus of the class described, combining a hydraulic vram, a plurality of wedges, a table having slots registering with said wedges, the table being adapted to have a core revolubly mounted thereon and the blocks registering with wedgesof said core to force the latter into position with respect to the core. I

4. Apparatus of the class described, coinmoved thereby, a plurality of wedges in the form of a wedge cross carried by and movable with said piston,a means for transmit ting motion from some or all of said wedges '60 bining a source of pressure, a piston device to drive radially outward a selected number of wedges of a core for making resilient tires.

5'.v Apparatusi f the class described, com- 1 

